/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */



#include "ngx_list_iterator.h"

namespace net_instaweb {

NgxListIterator::NgxListIterator(ngx_list_part_t* part) :
    part_(part),
    index_within_part_(0) {}

ngx_table_elt_t* NgxListIterator::Next() {
  if (index_within_part_ >= part_->nelts) {
    if (part_->next == NULL) {
      return NULL;
    }
    part_ = part_->next;
    index_within_part_ = 0;
  }
  ngx_table_elt_t* elts = static_cast<ngx_table_elt_t*>(part_->elts);
  return &elts[index_within_part_++];  // Intentional post-increment.
}

}  // namespace net_instaweb
